Mazda's 2019 SkyActiv-X engine may have cracked the HCCI engine challenge. It uses a spark plug to address typical HCCI problems but can also run on compression alone. These engines are 20–30% more ...

Discover how Mazda’s 13B-MSP Renesis evolved, its tech breakthroughs, and the issues that defined it, plus how it connects to ...

I don’t think anyone can dispute that Mazda is for the people. That it keeps the Miata humble and therefore objectively great is all I need to defend my case, but there’s also the fact that the ...

Mazda is building a straight-six turbodiesel and stuffing it under the hood of a crossover. The 3.3-liter turbocharged diesel will make 251 hp and 406 lb-ft in its most powerful form. This ...

Mazda has officially announced the Skyactiv-Z, an all-new gasoline engine set to debut in the next-generation Mazda CX-5, expected in late 2027. The engine will be paired with a hybrid system, and ...

Most carmakers are rowing back from diesel but Mazda has just announced details of the European version of a new spark-less 3.3-liter inline-six destined for its CX-60 premium SUV. Called e-Skyactiv D ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...

However, one basic difference is that compression-ignition engines utilize a much higher mechanical compression ratio, typically on the order of 14-22:1. A reason for this is that air only, instead of ...

A.Here's a pressure-volume diagram for a combustion engine. Although rough, it is an approximation of the so-called air-standard cycle. '' Point (a) is at atmospheric pressure, after which the air is ...